2.Technology Data
Surface : Common white and blank or can be bevealed
Edge: Tegular/Micro/Square/Concealed
Content: 90% mineral wool, 5% pertite, 2% starch, 3% water
Density: 280-320kg/m3 , 350-420kg/m3
Humidity resitance : 80-95%
NRC: 0.4-0.6
Bending strength: 250N
Light reflectivity: 85%
Paint mold resistance: class 1 GB/1741-2007